Push-Pull Low Power Transformer
EPC3115S-X & EPC3115S-X-LF
ELECTRONICS INC.
• Designed for use with Maxim Max253/Max3535E
• Add “-LF” after part number for Lead-Free
• Used in SMPS Push-Pull Topology
• UL 94V-0 Recognized Components
• UL 1446 Class B Insulation System
• Switching Frequency : 350 KHz
• 8 Pin SOIC PCMCIA Package
• 700 Vdc Minimum Isolation
• Very Low Core Loss
Electrical Parameters @ 25° C
PCA
Part
Number
EPC3115S-1
EPC3115S-2
*EPC3115S-3
*EPC3115S-4
Voltage
(V)
{
{
EPC3115S-5
EPC3115S-6
EPC3115S-7
EPC3115S-8
Primary
OCL
(µH Typ.)
Turns
Ratio
(Pri. to Sec.)
ET
(V-µSec.)
Duty Cycle
(%)
Rectification
(Half or Full Wave)
V out
V in
@ 100 KHz, 0.1 Vrms
Pri. :Sec.
@ 350 KHz
Connections
75
3.3
5
394
1:1:2:2
7.1
† Output Center Tap
75
5
5
988
1:1:1.3:1.3
11
† Output Center Tap
75
5
10
988
1:1:1.3:1.3
11
Voltage Doubler
75
5
10
988
1:1:2.67:2.67
11
† Output Center Tap
80
5
12
988
1:1:3:3
11
† Output Center Tap
80
5
24
988
1:1:3:3
11
Voltage Doubler
75
3.3
5
394
1:1:1:1
7.1
Voltage Doubler
75
5
5
988
1:1:.67:.67
11
Voltage Doubler
80
5
12
988
1:1:1.5:1.5
11
Voltage Doubler
75
5
15
988
1:1:2:2
11
Voltage Doubler
• † Connections : Output Center Tap as Common/Return • Operating Temperature : -40°C to +85°C •
Package
Schematic
Pri.
.290
(7.37)
.070
(1.78)
.090
(2.29)
.050
(1.27)
Marking :
PCA
EPC3115S-X(-LF)
Date Code
Pin 1
I.D.
.270
(6.86)
.420 Pad
(10.67) Layout
.150
(3.81)
.088 Max. (2.24)
1
8
2
7
3
6
4
5
.030
(.762)
*.098 Max. (2.49) for EPC3115S-3/-4
.003/.010
(.076/.254)
0°-8°
.050
(1.27)
.008/.012
(.203/.304)
Application
.025
(.635)
.365
(9.27)
.018/.022
(.457/.559)
Notes :
Sec.
EPC3115S-X
EPC3115S-X-LF
1. Assembly Process (Solder Composition)
SnPb
Pb-Free
2. Peak Solder Rating
225°C
260°C
1
(Unlimited, ≤30°C/60%RH)
1
(Unlimited, ≤30°C/60%RH)
(per IPC/JEDEC-J-STD-020C)
3. Moisture Sensitive Levels (MSL)
(per IPC/JEDEC-J-STD-020C)
4. Weight
5. Packaging Information
(Tube)
TBD grams
TBD grams
TBD pcs / tube
TBD pcs / tube
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSC3115S-X & -LF
Rev. 5
8/25/05 FT
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com